ac132145e5adeb02e6dfb3f8cf61eadf8acfe2104212cc5380f363685cb9e2fc

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 15:36

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General

Target

2024-05-21_524c61feeaae99750199ce8988d18e7e_cryptolocker.exe
Size

45KB
MD5

524c61feeaae99750199ce8988d18e7e
SHA1

c9915cd169bb78c9db38f221280f9d98540d51ae
SHA256

ac132145e5adeb02e6dfb3f8cf61eadf8acfe2104212cc5380f363685cb9e2fc
SHA512

cdcc62b9b3b5f43e37647882e1ca31aaf2677fc1968371eca80aaf73387ad9bbca9ae654c7f1c16534fb7741fe6339ed005e8363b7cf35352303e8955fcaff79
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPh+q:P6QFElP6k+MRQMOtEvwDpjBQpVXK+q

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1824-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2
behavioral1/memory/2604-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1824-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2604-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1824-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1
behavioral1/memory/2604-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1824-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2604-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2604 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-21_524c61feeaae99750199ce8988d18e7e_cryptolocker.exe

pid process

1824 2024-05-21_524c61feeaae99750199ce8988d18e7e_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2604	asih.exe

pid	process
1824	2024-05-21_524c61feeaae99750199ce8988d18e7e_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-21_524c61feeaae99750199ce8988d18e7e_cryptolocker.exe

description	pid	process	target process
PID 1824 wrote to memory of 2604	1824	2024-05-21_524c61feeaae99750199ce8988d18e7e_cryptolocker.exe	asih.exe
PID 1824 wrote to memory of 2604	1824	2024-05-21_524c61feeaae99750199ce8988d18e7e_cryptolocker.exe	asih.exe
PID 1824 wrote to memory of 2604	1824	2024-05-21_524c61feeaae99750199ce8988d18e7e_cryptolocker.exe	asih.exe
PID 1824 wrote to memory of 2604	1824	2024-05-21_524c61feeaae99750199ce8988d18e7e_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-21_524c61feeaae99750199ce8988d18e7e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_524c61feeaae99750199ce8988d18e7e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1824

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
46KB

MD5
5eee4f5e69e8cd908d82c3f68c396830

SHA1
3826f609eff0417ed3aaf79371c7b8bfc01c7ecf

SHA256
a69e358485ac8388934dde1c27c999e07198eba560dcca40e84d17a956b94d35

SHA512
e022a883fcda13801319802886d47fd2d08f1b594270cb0545c970e15fbf47845ee31ad924a039e6ea1f22d4ce1256d7de84a4215c7894fdaaebe86b67710892

Download Submit
memory/1824-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1824-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1824-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1824-8-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1824-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2604-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2604-18-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2604-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2604-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download